These pre-filled propane fuel cylinders have a quality steel construction, stable base and reliable valves, providing safe and easy-to-use operation. The universal size fits all standard portable propane appliances, tabletop grills and propane torches. Product Features: Quality steel construction, a stable base and reliable valves Safe and easy-to-use operation Universal size Fit all standard portable propane appliances, tabletop grills and propane torches Lightweight, easy to use and disposable Manufactured to exceed the requirements of applicable government agencies including the U.S. Department of Transportation and Transport Canada Made in the USA with global components Includes four 16.4-oz. cylinders hazardous/flammable and not returnable